155116216 has 16 divisors (see below), whose sum is σ = 292937400. Its totient is φ = 76999584.

The previous prime is 155116207. The next prime is 155116217. The reversal of 155116216 is 612611551.

It is a happy number.

It is a super-2 number, since 2×155116216² = 48122080932317312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155116217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68635 + ... + 70858.

Almost surely, 2^155116216 is an apocalyptic number.

It is an amenable number.

155116216 is a deficient number, since it is larger than the sum of its proper divisors (137821184).

155116216 is a wasteful number, since it uses less digits than its factorization.

155116216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139638 (or 139634 counting only the distinct ones).

The product of its digits is 1800, while the sum is 28.

The square root of 155116216 is about 12454.5660703214. The cubic root of 155116216 is about 537.3027548121.

Adding to 155116216 its reverse (612611551), we get a palindrome (767727767).

The spelling of 155116216 in words is "one hundred fifty-five million, one hundred sixteen thousand, two hundred sixteen".